Valve-setting machine.



PATBNTED AUG. V4, 190s. l R. B, WYLLIE A J. D. TWOHIG.

- -V l VALVE SETTING MACHINE.

AfPPLIcAno; num oo'r.12. 1901.

I wlw..

at one end of their stroke.

lROBERT E. WYLLI AND JOHN D. TWGHIG, OF AMARILLO, TEXAS.

VALVE-SETTING MACHINE.

Specification of Letters Patent. Y

Patented aug; 4, 1908.

Applicationled October 12, 1907. Serial No. 397,161.

To all Awhom it may concern:

Be it known that we, ROBERT E. WYLLiE and 'Joux D. TwonIG, citizens of the United States. residing at Amarillo, in the county of Potter and State of Texas, have invented certain new and useful Improvements in Valve-Setting Machines, ol wlnch the following is a specifica-mon.

Our 'invention relateshto new and useful improvements in valve setting machines and more particularly to a machine for revolving the main driving wheel of a locomotive to set the valves.

It is necessary to set the valves on a locomotive in order that the steam from the boiler to the cylinders may be equally distributed. "lhe valves must be so positioned that when the crank pins of the driving ,wheels are on the dead centers, with relation to the pist-ons, the latter must necessarily be When the'eccentric-s or other parts of the driving mechanism are disconnected from the driving wheels, as where the wheels are removed to turn down the tires or other repairs, it is necessary to revolve the wheels to properly connect the arts. This has usually been done by means of pinch bars, which not only requires the services of several men but is extremely laborious and slow.

It is therefore the object of our invention to provide a machine for revolving the main driving wheel which can be operated by one man with increased rapidity, so as to save not only time, labor and expense, but to Amore perfectl set the valves.

Finally the object of the invention is to 'provide a device of the character described that will be strong, durable and eiiicient, simple and comparatively inexpensive to construct and one in which the several parts will not be liable to get out of working order.

With the above and other objects in view, the invention has particular relation to certain novel features, an example of which is described in the specification and illustrated in the accompanying drawings, wherein:

Figure 1 is a partial transverse vertical sectional view of an engine pit showing our machine in elevation, also the lower portion of the driving wheels in position on the machine, Fig. 2 is an end elevation of the machine showing a portion of one of the driving wheels resting thereon, and Fig. 3 isa vertical sectional view taken on the line x-zof Fig. 1,

' ear 11.

llooking in the direction of the arrow and s' showing some of the parts in elevation.

In t-he drawings the numeral 1- designates the side walls of the engine it and l the rails which are set back from tie inner edges of said walls as shown in Fig. 1.

3 indicates the main driving wheel and 4 the axle. The engine or locomotive is raised so as to raise the wheels 3 above the rails '2.

The machine for revolving the wheels comprises a horizontal shaft 5 extending across the pit and having fixed on its extreme ends grooved rollers 6, shaped to receive theanges 7 of thedrive wheels, and fit the contour of the same. Thus when the shaft 5 and rollers 6 are revolved, the wheels 3 will be consequently revolved and properly positioned to set the valves of the locomotive. The shaft 5 is supported in bearings 8 disposed adjacent to the. inner sides of the rollers 6. These bearings are provided at their lower sides with laterallyextending ears 9 receiving set screws lO which bear onthe top of the walls 1 near the inner edges thereof. B v adjustinar these set screws the machine is raised and 80 lowered so as to throw the rollers 6 into and out of contact with the flanges T, and it is apf f parent that by tightening these screws the pressure of the rollers (i againstthe Ranges 7 may be increased so that slipping or lost mo- 35' tion is obvia-ted. For revoking the shaft 5 agear 11 is keyed thereon adjacent one ofthe bearings 8. For driving this gear a hanger bracket 12 is secured to the inner side of said hearing and )rojects some distance below the 90 his bracket supports a short rive shaft 14 projecting therebeyond and having a pinion 15 disposed within the bracket and meshing with the gear 11. The cud of the shaft 14 which projects into the pit is 9'5 suitably shaped or reduced for connect-ion with a suitable motor by which the shaft is driven and motion thus imparted to the machine. It is to be understood that the shaft 5 and its revolving mechanism may be driven 100 in either direction thus permitting a minute adjustment of the valves, driving wheels and other parts. When the work has been finshed the machine may be readily removed by turning the set Vscrews 10 to lower the 105 'bearings 8 and disconnecting the shaft 14 with the motor.

It sometimes happens that in stopping the motor the parts are not brought exactly to the proper point, however this can be accom- 11u piished by applying asui-tablertool to .the end shaft 14 and turning the parts by hand until the desired point is reached.

That we claim, is: 1. In a locomotive valve setting machine, a shaft,`rollersa\dapted to engage the driving wheels of a locomotive mounted onthe shaft, bearings supporting said shaft. means for vertically adjusting the bearings, and means for transmitting motion to the shaft.

2. In a locomotive valve setting machine, a shaft, rollers adapted to engage the driving Wheels of a locomotive mounted on the shaft, bearings supporting said shaft, means for ver- 15 tically adjusting the bearings, a gear carried by the shaft, a drive shaft supported adjacent the gear, and a pinion meshing with the gear mounted von the drive shaft.

3. In a locomotive valve setting machine, a shaft, rollers mounted on the shaft, means for adjusting the shaft vertically, and means for transmitting motion to the shaft. y

4. In a locomotive valve setting machine, a shaft, grooved rollers mounted on the shaft adapted to receive the fanges of locomotive wheels, and means for transmitting motion to the shaft and rollers.

5. In a locomotive valve setting machine,

a shaft, bearings supporting the shaft, rollers adapted to' receive the wheels of a locomotive "0 mounted on the shaft, a gear mounted on the shaft, a pinion supported in mesh with the gear., and means for imparting motion to the pinion.

6. In a locomotive valve setting machine, 25

a shaft, bearings supporting the shaft, rollers adapted to receive the wheels of a locomotive mounted on the shaft, a gear mounted on the shaft, a hanger carried by one of the bearings, a shaft mounted in the hanger, and a pinion mounted on the shaft mes ling with the gear.

7. In a locomotive valve setting machine, a shaft, rollers adapted to engage the wheels of a locomotive mounted on the shaft, means for transmitting motion to the shaft, and a shaft associated with said transmitting means having a reduced end to receive a hand operating tool. l 4

In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

ROBERT E; WYLLIE. JOHN D: TWoHIG.

Witnesses:

R. L. EAKLE, E. MoDoNALD.

i ,i ....v. ...y........ 

